Roadroid References The Roadroid system

1 Roadroid reference projects, made by June 2014 Page 1 Follow us on: Roadroid References Contents page The Roadroid system 1 reference projects 2-6 About us 7 International Research Cooperation 8 Please note that this is not a user guide. Our essential guide, describes how to operate the system . The Roadroid system Roadroid is a system to monitor road conditions by the use of a smartphones. Its consists of: 1) an app, that picks up the vibrations from the road with the smartphone s built in accelerometer - and the GPS to position it. 2) an internet service to monitor the road condition data and transfer it to road maintenance management systems. The app The Smartphone application analyzes the road vibrations 100 times per second (in 90 km/h this is one signal every 25 cm).

2 From these 100 samples, one road condition value is calculated and saved with GPS coordinates. There are complex formulas behind the signal analysis and the result is expressed in a global standard - International Roughness Index (IRI). So, every second an IRI value is saved with an X, Y and Z coordinate from the GPS. Data is stored on the phone and then transferred by WiFi or 3 G to a cloud server. The internet service After the data has been transferred to the cloud service it can be monitored on a map. The data is assigned 4 colors depending on the road condition. Green for good, Yellow for Satistfactory, Red for Unsatisfactory and Black for Poor. Data is also aggregated in 100 meter sections, and can easliy be downloaded to create analyses and charts in Excel.

3 Roadroid reference projects, made by June 2014 Page 2 Follow us on: Myanmar Sweroad/MOC/ADB Myanmar Ministry of Construction (MOC) use 5 Roadroid units to collect roughness data about their entire road network. The Roadroid training was held as a 1-day introduction for ~25 operators and managers, and a 3-day hands-on training for 15 operators. The training focused on the roughness data collection, but also had brief introductions to GPS-video data collection and a road inventory application for smartphones. The MOC roads vary from 2 lanes concrete roads, paved roads with different widths and down to flexible pavement DBST. There are also some gravel roads in the network. Except from roughness values, the spatial data collected can be used to build a road database.

4 For trimming and learning the adjustable constant for cIRI (calculated IRI), a test was made with 2 different cars and 4 units. Two units were mounted on left/right side of the cars to see how the cIRI constant changed. During the training we agreed on suitable speeds depending on road type (ranging from concrete expressway to DBST and gravel road). The training was done in cooperation with Sweroad and the local consultant Myanmar international consultants (MMiC), with funding from ADB (Asian Development Bank). Contact References : Roadroid reference projects, made by June 2014 Page 3 Follow us on: Afghanistan UNOPS/PWD In Afghanistan, Northern region, UNOPS runs a road project funded by SIDA. The project s focus is gravel roads in the four provinces of Balkh, Sari Pul, Samangan and Jawzjan.

5 Local partner is Public Works Department (PWD). Roadroid was tested and evaluated during 2013 and then procured in late 2013. An onsite training held in June 2014 included a 3-day planning followed by a 6-day training for 15 road engineers. The training was performed in coordination with a project team from UNOPS (SIDA/RAIP III/NTH/RMMS - Project No. 00084840). A local project team from UNOPS coordinated the training, which was performed by a Swedish Road Engineer and Roadroid expert. The training focused on the roughness data collection but included also GPS-video data collection and an introduction to our road inventory application for smartphones. Training also included a workshop of future needs: Road Weather Information Systems, Traffic Counting and Traffic Management.

6 A great challenge was the rough gravel roads, and the extreme type of damages. An extreme surface roughness is caused by the use of natural material, round stones mixed with sand. The sand gradually blows or wash away and the big round stones remain. Potholes sometimes was bathtub size, needing creeping speed to pass. Its was not possible to classify that in terms of IRI. We have functional requirements to register these type of damages, and the discussions progressed the thinking and possible solutions. References : Mr. Shekhar Kumar SHRESTHA Road Construction and Maintenance Specialist AFOH | RAIP | Mazar e Sharif, Afghanistan Email: / Mobile: +93 792277709 Mr. Bengt Ekman Roadroid reference projects, made by June 2014 Page 4 Follow us on: Sweden Trafikverket/Motormannen During 2014 Roadroid runs a Research and Innovation project on behalf of the Swedish Transport Administration (Trafikverket).

7 Questions to be answered is how the data can be further automated and what kind of decisions to be made from the information. The project is carried out in cooperation with Motorm nnen (M), a Swedish Motorist club with some members. Motorm nnen use Roadroid in their inspection routes organized in 17 districts of Sweden. 12 brand new Volvo V40 D2 cars will collect up to km of road each. This results in a total road survey of possibly up to km. The results will be matched and compared with data from the ongoing national road surveys with the IQL 1 survey vehicles (RST). These surveys only partially cover the road network. In September 2014 Motorm nnen prepare an independent national report of the Swedish National roads from the collected data. They will share this with both media and road users.

8 Both a quantitative correlation study towards the IQL1/RST measurements, and a qualitative evaluation with the drivers of the twelve cars will be performed. After some km in each car, they can share valuable experiences of how accurate Roadsroid s expression of the road condition is. The collected data is exported in intervals to Motorma nnen s own website and monitored through a Cartodb service: References : Kent Olsson Research and Innovation Portfolio manager Email: Phone: +46-771-921 921 Erik Kjellin Traffic safety responsible Email: Phone: +46-8-690 38 00 Roadroid reference projects, made by June 2014 Page 5 Follow us on: Sweden The City of Upplands V sby Roadroid have several Swedish cities as clients, and one early adopter with active users is the city of Upplands V sby, north of Stockholm.

9 The city is growing and has several industrial projects ongoing that they want to monitor With Roadroid the city s personnel can do the surveys by themselves. For the entire street network and for the bike paths as well! It is not a coincident that the City of Upplands Vasby has been awarded as the most developed IT-city of Sweden, and they have been an excellent early adopter of our new technology. As they now manage to do the survey by their own staff, Upplands V sby can reduce the cost for expensive surveys made by consultants = more money for the actual pavement work! Roadroid produces automated road condition reports from the street register, and Upplands V sby have used the data in dialogues with their contractors also on detailed object level. As they run a continuous license, they are able to effectively monitor the change of the pavement condition from year to year and even between different seasons.

10 References : Kristofer Kvarnstr m Responsible for Streets maintenance J rgen Wihlner Manager Civil Works department Phone: +46-8-590 970 00 0510152025301004007001000130016001900220 0250028003100340037004000430046004900520 05500580061006400eIRIcIRI010203040506010 0400700100013001600190022002500280031003 4003700400043004600490052005500580061006 400 Speed (km/h)Altitude (m) Roadroid reference projects, made by June 2014 Page 6 Follow us on: Sweden Bike paths in the City of Lund The city of Lund is maybe most recognized for its famous University. A famouns university, means a lot of students. And a lot of students means a lot of bicykles. So Lund is a biking city, with high utlilization and demands on the bike paths.